Great start@

Hey there! Thanks for dropping by and checking out my work. You asked for some feedback, so here's what I can pass onto you!:

Lip sync: It's usually best to 'snap' between mouth shapes rather than tweening between them. If you animate a frame ahead, it'll make your mouths slip into the audio very cleanly!

Posing: Try and avoid twinning (symmetry). Instead of just moving arms, move the whole form and let the other pieces follow. You might want to check out some of the old WB cartoons and watch for strong lines of action!

Composition:
You have some strong ideas for shot composition, and voice/acting! That's all holding it together well

Of course this all comes with practice. You have the software down pat- just need to fine tune the animation fundamentals and you'll be on your way :)

(hope this helps!)

Graphics are OK but the animation lacks

The animation looks like hell, doesn't flow at all. The linework on the characters make it look like hell. Maybe if you used lines and taperd them with a fill adjustment/offset the cleaner shapes will add more effect.